set interfaces wireguard wg01 address '10.1.0.1/24'
set interfaces wireguard wg01 description 'VPN-to-wg02'
set interfaces wireguard wg01 peer to-wg02 allowed-ips '10.2.0.0/24'
set interfaces wireguard wg01 peer to-wg02 endpoint '192.168.0.142:12345'
set interfaces wireguard wg01 peer to-wg02 pubkey 'XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI='
set interfaces wireguard wg01 port '12345'
commit

vyos@vyos#
delete interfaces wireguard
set interfaces wireguard wg02 address '10.2.0.1/24'
set interfaces wireguard wg02 description 'VPN-to-wg02'
set interfaces wireguard wg02 peer to-wg02 allowed-ips '10.2.0.0/24'
set interfaces wireguard wg02 peer to-wg02 endpoint '192.168.0.142:12345'
set interfaces wireguard wg02 peer to-wg02 pubkey 'XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI='
set interfaces wireguard wg02 port '12346'

vyos@vyos# show interfaces wireguard
-wireguard wg01 {
-    address 10.1.0.1/24
-    description VPN-to-wg02
-    peer to-wg02 {
-        allowed-ips 10.2.0.0/24
-        endpoint 192.168.0.142:12345
-        pubkey XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI=
-    }
-    port 12345
-}
+wireguard wg02 {
+    address 10.2.0.1/24
+    description VPN-to-wg02
+    peer to-wg02 {
+        allowed-ips 10.2.0.0/24
+        endpoint 192.168.0.142:12345
+        pubkey XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI=
+    }
+    port 12346
+}

vyos@vyos# commit
[ interfaces wireguard wg01 ]
Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/wireguard.py", line 356, in <module>
    apply(c)
  File "/usr/libexec/vyos/conf_mode/wireguard.py", line 169, in apply
    if c['interfaces'][intf]['state'] == 'disable':
KeyError: 'state'

delete [ interfaces wireguard wg01 ] failed
[ interfaces wireguard wg02 ]
Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/wireguard.py", line 356, in <module>
    apply(c)
  File "/usr/libexec/vyos/conf_mode/wireguard.py", line 169, in apply
    if c['interfaces'][intf]['state'] == 'disable':
KeyError: 'state'

[[interfaces wireguard wg02]] failed
Commit failed